Journal of Research in Multidisciplinary Methods and Applications

Curriculum Innovation and Practical Exploration of Preschool Education from the Perspective of Educator Spirit

Ying Zhou , Qian Shi , Guofeng Zheng , Shuang Li , Renyu Mu — Tue, 15 Apr 2025 00:00:00 +0000

In the context of the new era, the realization of education modernization is inseparable from the construction of high-quality teachers. As an important driving force for the reform and development of the teacher education system in the new era, the spirit of educators has endowed the people's teachers with a lofty mission and new responsibilities. Guided by the spirit of educators, this paper takes the course of "preschool education" as an example, analyzes the problems existing in the current course, and discusses how to carry out teaching reform from four aspects: teaching objectives, content, implementation and evaluation, so as to improve the quality of "educator spirit" of future kindergarten teachers.

Research on Position Control of Robotic Arm Based on Inversion Method

Tue, 15 Apr 2025 00:00:00 +0000

The research on robotic arm position control is not only a key component of the development of robot technology, but also an important force to promote the process of industrial automation and intelligence. The basic principle of the inversion control method is to transform the control problem of a nonlinear system into a control problem of a linear system by constructing the virtual control input of the system, thereby simplifying the design process of the controller. On this basis, a position control strategy based on inversion method was proposed for the mathematical model of the manipulator. The strategy fully considers the dynamic characteristics and nonlinear factors of the robotic arm, designs the corresponding controller, and proves the stability of the closed-loop system. The Simulnk platform in MATLAB software is used to design the controller based on the inversion method and simulate the analysis, and the results show that the robotic arm based on the inversion controller has a good improvement in tracking accuracy, response speed and anti-interference ability.

Small Pepper Transplanting Machine Based on Arduino MEGA2560 Main Control Drive

Qiao Qin , Dengqiu Ma , Tingqiang Wu — Tue, 15 Apr 2025 00:00:00 +0000

In view of the traditional agricultural pepper transplanting technology using artificial, labor-intensive, low transplanting efficiency, difficult to achieve large-scale production and other issues, we propose a Arduino Mega2560 based on the main control drive system to plant intelligent background to design a small pepper transplanter, pepper seedlings for automatic transplanting. The transplanting mechanical device is mainly composed of five mechanisms: planting mechanism, transmission mechanism, fertilization mechanism, storage mechanism and control mechanism. The transplanting mechanical device has the characteristics of simple structure, functional integration and automation, which reduces manpower and material resources, improves planting efficiency, and improves the mechanization level of transplanting planting.

Study on Corrosion Resistance of SERMETEL Coating

Jingwen Qiu — Tue, 15 Apr 2025 00:00:00 +0000

Using 17-4PH steel with good toughness and castability, easy to press and weld as the base material, SERMETEL water based high temperature resistant coating for coating, the 17-4PH stainless steel surface after surface cleaning is coated with a part of the shot peening method of first coating the bottom coating and then coating the sealing coating, the other part is coated with primer coating to dry after sand blasting treatment and then coated with sealing coating. The service performance of the coating was tested by continuous spray resistance to synthetic seawater, heat/synthetic seawater salt spray cycle test and electrochemical test, after 100h SERMETEL coating shot blasting and sandblasting treatment, obvious corrosion occurred on the surface of the sample, and the color of the sample surface became dark, and scattered pitting pits were visible. The pitting pits on the surface of the samples of synthetic seawater continuously sprayed for 1000h were enlarged and connected into sheets. Serious corrosion has occurred on the surface of the 1000h synthetic seawater continuous spray sample, after the combined alternating action of high temperature and seawater salt spray, the surface of the sample has a relatively obvious and large corrosion trace, especially the specimen edges corrosion is more serious, the coating corrosion exposed the substrate, and the substrate appeared obvious rust color. The self-corrosion potential and self-corrosion current density of SERMETEL coated 17-4PH stainless steel samples treated with shot blasting and sandblasting were determined by electrochemical experiments in different concentrations of NaCl solution. Found shot peening and sandblasting coating corrosion rate is the fastest in 5% NaCl solution.